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iOS Enumerations and Optionals in Swift Introduction to Enumerations Enums with Associated Values

Richard Pitts
PLUS
Richard Pitts
Courses Plus Student 1,243 Points
Posted by Richard Pitts
Richard Pitts
Courses Plus Student 1,243 Points

Tried and failed, what did I do wrong?

Tried and failed, what did I do wrong?

enums.swift 
enum mobilePhone {
  iphone: String
  android: String
  windowsPhone: String
  }
let 7 Plus = MobilePhone.iphone

1 Answer

Dan Lindsay
Dan Lindsay
39,611 Points
Dan Lindsay
Dan Lindsay
39,611 Points

Hi Richard,

First off, when you are creating an enum with associated values, you still have to use the case keyword before the enum member, then put the type inside parentheses. Like this:

enum MobilePhone {
    case iphone(String)
    case android(String)
    case windowsPhone(String)
}

Also, make sure you use the exact constant name they ask for in the challenge, or it won’t pass. I had it all working in a Playground, but it was continually failing in the challenge until I noticed that I was using iPhone instead of iphone. So if you use this:

let iphone = MobilePhone.iphone("7 Plus")

you should be able to pass the challenge. Hope this helps!

Dan